hello im chris... i have just started in the whole computer world.... well iv been at it bout a yr now...but to the point i have an hp motherboard..intel celeron proc...geforce graph card...antec illusion case...antec 500w psu....iv hooked up car radio for aux.... wll anywho.. my other hard drive im running windows 8.1 was running just fine .. i added alienware desktop mod to it. had to reboot sigined in but nothing but black screen and courser... help me please...